#macroevolution

• Anagenesis — A macroevolutionary mechanism or process characterized by the linear and progressive evolution of a single phyletic lineage, wherein an entire species undergoes structural and genetic transformations accumulated over time, gradually transforming into a new species without branching. This evolutionary phenomenon, opposite to cladogenesis, involves the complete replacement of the old gene pool through continuous adaptation to the environment, leading to the emergence of superior morphological and physiological traits.
• Aromorphic — Pertaining to aromorphosis; relating to a major evolutionary shift or characterized by a profound morphophysiological transformation that increases structural complexity. As a noun, it denotes the newly acquired anatomical trait that enhances adaptive capacity.
• Aromorphosis — A primary direction or mechanism in the progressive evolution of living systems (introduced by Alexey Severtsov) consisting of the acquisition of major, complex morphophysiological changes that raise the general level of organismal organization.